I'm looking for a good RSS feed notifier that has these features:
[Required] Windows software
[Required] Full proxy support for all sorts of passworded and not proxies
[Required] Ability to display notifications when new items show up in feeds.
Notifications should be able to be displayed in the corner of the screen, like new mail notifications in Outlook or RSS ones in Feed Notifier
URL link so the post can be open from the notification in the browser
[Strongly desired] Proxy support should work out of the box the way it does in FireFox or Chrome, by using Windows's proxy settings; without the need to configure it manually.
[Strongly desired] Ability to NOT display notification for older posts.
This is critical for SE where all RSS feeds are "post changes" based; and thus display old questions whenever someone edits the question or one of the answers... makes finding NEW questions to answer a drag and a half.
[Wanted] Easy integration with StackExchange. I don't want to hunt down every site's RSS URL if possible (just type site name and it generates "https://softwarerecs.stackexchange.com/feeds").
[Wanted] Configurable check period - per feed.
As mentioned in #3, I am already aware of Feed Notifier, but it's a pain when it comes to #4 and #5.